[markonen]

Worth noting on the wireless side that this unit, if plugged to Ethernet, will create a dedicated SonosNet network your other Sonos speakers would then automatically join. So it’s not just a client, it’s also a base station.

[TYPE_FASTER]

And it does some signal processing to make sure all the audio across all the Sonos devices is playing in sync. And there’s a mic in there that is used to tune the audio to the room it’s in, etc.

Much more than just playback.